If you're low on parses at 895 ilvl, then it's 4set and trinket causing it mostly, but you could be higher on some fights. . Considering that I did 603k dps on my 889 2nd warrior with just legendary bracers, no DoS, CoF or AoE cleaving (only 2 set) then you could be doing several things wrong.
Consider your:
- Cooldown management
- Frothing Berserker uptime, perhaps you rampage on 99/98 rage sometimes (using weakaura's for buffs and rage bar can help stop this)
- If you hit 100 rage but are enraged, remember you should use RB then rampage.
- Despite your ilvl, your gear may be poorly itemised ergo you may have too much crit. As a rule of thumb remember, Haste > Mastery (until 30% where haste/mastery) > Vers > Str > Crit. Using pawn and SimulationCraft can help you to establish exact stat weights and then put them into the addon.
Make sure to refer to the fury warrior handbook found here:
http://www.mmo-champion.com/threads/...-Guide-amp-FAQ
Also the warrior discord (this invite will eventually expire):
https://discord.gg/JDzJP
While you're in a casual guild you seem to want to do well, even with no 'gtfo mentality'. I can appreciate that. I hope you understand that it goes without saying that 4set and BiS trinkets will always be a big deal and a seriously limiting factor, even for ilvl equivilent parses post 890-895 ilvl.